19652812012 has 12 divisors (see below), whose sum is σ = 34393963576. Its totient is φ = 9825965280.

The previous prime is 19652812009. The next prime is 19652812027. The reversal of 19652812012 is 21021825691.

It is a super-2 number, since 2×19652812012² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3088 + ... + 198280.

Almost surely, 2^19652812012 is an apocalyptic number.

It is an amenable number.

19652812012 is a deficient number, since it is larger than the sum of its proper divisors (14741151564).

19652812012 is a wasteful number, since it uses less digits than its factorization.

19652812012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220368 (or 220366 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 37.

The spelling of 19652812012 in words is "nineteen billion, six hundred fifty-two million, eight hundred twelve thousand, twelve".